Hello ggeiger and All, https://www.outsideonline.com/...l-helmet-controversy
[Turns out, it was a new kind of helmet. The brandâ€™s four new lids combine conventional EPS foam with a new low-density, latticelike structure called WaveCel, which both compresses and shears laterally on impact to protect the brain. Along with the WaveCel-equipped helmets, which are now available, Trek released a study by the researchers who invented the technology. The study claims to show that WaveCel was up to 48 times more effective at preventing concussions than helmets with just standard EPS foam.
Some competitors were nonplussed by the bold safety pronouncements. MIPS, a company whose technology essentially popularized awareness of the role of rotational energy in brain injuries (and offered its own solution), responded
by saying that MIPS was â€śunable to replicateâ€ť Trekâ€™s performance claims in its own testing. (Trekâ€™s headline claim failed to mention that the same testing also showed that systems like MIPS lowered the risk of concussion, if not as much as WaveCel.) A week after Trek unveiled WaveCel, Koroyd, which makes its own low-density cellular structure for use in sports helmets and other protective gear, issued a press release running down Trekâ€™s claims
and asked if Trek had been â€ścarried away by a wave of hype.â€ť
Faced with the Trek-said, MIPS/Koroyd-said spat, what are cyclists to make of the claims on each side? Itâ€™s a little hard to say at this point, but some context helps at least frame the issues and understand why this is such a contentious topic.]
+1 mph Faster